Stored procedures in the MDS database: There are over 300 stored procedures in the MDS database. Most of these are executed behind the scenes by the UI or the WCF API. Only a few are listed in the docs (Staging Stored Procedure, Validation Stored Procedure, Delete a Version). You can execute the undocumented sp’s if can figure out how they work (and a few 3rd-party products I have seen do just that), but just be aware those sp’s can change in future versions